Kotegawa Yū is a handsome and reliable older brother, known for his easygoing nature and playboy reputation, standing out among the more eccentric male characters in To Love Ru.
Kotegawa Yū is described as a tall and attractive young man with spiky blond hair.
He has sharp eyes, resembling his younger sister Yui Kotegawa.
His looks frequently draw attention and admiration.
He is often seen casually dressed, sometimes even walking around the house shirtless.
Yū contrasts with his strict and orderly younger sister, exuding a laid-back and cheerful vibe.
He is sociable and easy to talk to, yet fundamentally honest and sincere.
Despite his playful reputation, he is mature and caring, especially towards his family.
He often teases Yui, brushing off her scolding, but discreetly worries about her struggles to connect socially due to her strictness.
He quickly accepts strange stories, such as those involving aliens around Rito Yuki, showing an open-minded and understanding attitude.
Yū is the eldest son of the Kotegawa family.
At the start of the story, he is a third-year high school student and later becomes a university freshman, aging from 18 to 19 years old.
He attended Sainan High School, where his homeroom teacher was Honekawa.
During high school, he helped various students and even developed a crush on an older co-worker from his part-time job.
He is now dating Haruna Sairenji’s older sister, Sairenji Akiho.
Yū is physically strong, able to overpower multiple delinquents who targeted his sister Yui Kotegawa.
He can handle himself in a fight, once knocking down the Principal with a single punch to protect Riko (Rito Yuki transformed).
He is level-headed and reliable in emergencies, often stepping in to calm problems.
Yū is Yui Kotegawa's older brother, sharing a friendly sibling relationship despite their personality differences.
He often looks out for Yui, concerned about her difficulties making friends due to her severe nature.
He is acquainted with Rito Yuki and even becomes a trusted confidant, supporting him after learning about the chaos surrounding Rito’s life.
Yū knows that Yui secretly likes Rito and sometimes mentions it in family conversations, though Yui always denies it.
He dated at least two women before, though both relationships have ended.
Currently, he is seriously dating Sairenji Akiho, though he struggles to fully express his true feelings to her.
Yū is considered one of the best-looking male characters in the series and stands out as relatively "normal" compared to the wild male cast.
When Rito Yuki brings school materials to Yui during her illness, Yū encourages Rito to deliver them personally, knowing it would make Yui happy.
He witnessed Nemesis in a yukata while walking with his mother, though he did not notice Kurosaki Mea was with her.
Yū used to have a crush on the school nurse, Mikado Ryouko.
He worries when Sairenji Akiho acts distant, showing his genuine affection and vulnerability.
“If you ever need someone to talk to, I’m here for you.”
“She may act strict, but she’s just trying to do her best.”
“I didn’t expect life to be this complicated, but I’ll deal with it.”
Yū’s Debut and Early Appearances
Yū first meets Rito Yuki when Yui Kotegawa is home sick and Rito visits to bring her homework.
Having seen Rito previously help Yui escape from trouble, Yū warmly welcomes him into their home.
Encounter with the Chaos
Yū later becomes directly involved in the unusual incidents surrounding Rito Yuki.
He ends up witnessing Rito’s transformation and the chaos involving Golden Darkness, making him one of the few non-supernatural characters aware of these secrets.
Despite his initial disbelief, he quickly adapts and becomes a trustworthy ally.
Protection and Relationships
Notably, Yū protects both Yui and Rito (in his transformed state as Riko) from threats, using both his wits and physical strength.
His approachable nature draws female attention, and his past includes relationships with at least two women.
His current romantic interest is Sairenji Akiho, though their relationship has its own challenges.
Supporting Rito and Yui
From thereon, Yū acts as an older-brother figure not only to Yui but also to Rito, offering advice and support whenever they face trouble.
He occasionally discusses Yui’s feelings for Rito, being one of the few who notice her true affections.
Voice Actor: Atsushi Abe.
Among the male cast, Yū is viewed by the author as a precious, "normal" character and a dependable “big brother” figure.
He appears frequently whenever the Kotegawa family is highlighted in the story.
Should Rito ever marry Yui Kotegawa or Haruna Sairenji, Yū could become Rito’s brother-in-law, creating an amusing family dynamic.
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